package com.taowan.xunbaozl.morning_speak.design_pattern.day10.ext;

/**
 * Created by 杨观回 on 2016/3/3 0003.
 */
public class Light {
    public void lightOn() {
        System.out.println("light on");
    }

    public void lightOff() {
        System.out.println("light off");
    }

    public void lightAll() {
        System.out.println("light all");
    }
}
